Featuring mini-character illustrations of the idols from “The Idolmaster SideM” in Christmas outfits, the “M-Fes 2026 in Winter Wonderland” collaboration menu and original merchandise are now available!
The event will be held from December 1, 2026, to January 12, 2027, at DECOTTO by animate cafe in Ikebukuro, Tokyo.
・Event dates: Tuesday, December 1, 2026, through Tuesday, January 12, 2027 (closed December 31 through January 3)
・The event will be held at DECOTTO by animate cafe in Ikebukuro, Tokyo; reservations from December 1 to 6 will be by lottery
・Receive a coaster (49 varieties total) with every menu item ordered
・Four types of trading goods, a tote bag, and birthday bromides will also be given away
Details on The Idolmaster SideM × DECOTTO “M-Fes 2026 in Winter Wonderland”
Featuring collaboration menu items—including drinks from TAG-COFFEE STAN(D), “mofutto decotto” waffles, and soups—as well as original merchandise!
From December 1 to 6, reservations are required via a lottery system; on other dates, no reservation is needed.
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.Collaboration Menu
The lineup includes three types of “mofutto decotto” waffles featuring Kaeru, Kumacchi, and Satan in Christmas-themed designs, as well as soup topped with mini-character mochi!
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.| Menu | Details | Price |
|---|---|---|
| Mofutto Decotto (3 varieties total) | ① Kaeru’s Christmas Ver. ② Kumacchi’s Christmas Ver. ③ Satan’s Christmas Ver. |
950 yen each (tax included) |
| Christmas Soup (HOT) | Includes a mochi cone featuring a mini character illustration (Randomly selected from your chosen group) |
850 yen (tax included) |
| SELECT TEA BAG | Choose any 2 tea bags from a total of 16 varieties Japanese Black Tea: Altessimo, Beit, W, FRAME, Aya, Café Parade・S.E.M・Legenders Strawberry Pistachio: Jupiter・DRAMATIC STARS・High×Joker・Shinsoku Ikkon・Mofumofuen・THE Kogado・F-LAGS・C.FIRST |
650 yen (tax included) |
| TAG-COFFEE STAN(D) | Coffee or tea (contents can be customized) Choose your favorite banner from all 49 LIMITED BANNER designs |
850 yen (tax included) and up |
*TAG-COFFEE STAN(D) must be ordered via the ordering website.
*Images are for illustrative purposes only. Actual items may differ.
Menu Order Bonus: “Coaster”
For every menu item ordered, receive one coaster featuring your chosen group!
| Group | Unit | Types |
|---|---|---|
| Group A | DRAMATIC STARS, Mofumofuen, F-LAGS, C.FIRST | 12 varieties total |
| Group B | Beit, W, Café Parade, Legenders | 13 varieties total |
| Group C | Altessimo, FRAME, Aya・S.E.M | 11 types total |
| Group D | Jupiter・High×Joker・Shinsoku Ikkon・THE Kogado | 13 varieties total |
*Designs cannot be selected.
Original Merchandise
Trading goods are divided into the same four groups (A–D) as the menu order bonuses!
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.| Product Name | Specifications & Size | Price |
|---|---|---|
| Trading Mini Acrylic Stands: M-Fes 2026 in Winter Wonderland Ver. | 49 varieties total (A: 12 varieties / B: 13 varieties / C: 11 types / D: 13 types) Main body: Approx. 7 cm (H) × 5 cm (W), Base: Approx. 3 cm (H) × 4 cm (W) |
800 yen (tax included) |
| Trading CoLotta M-Fes 2026 in Winter Wonderland Ver. | 49 varieties total (A: 12 varieties / B: 13 varieties / C: 11 varieties / D: 13 varieties) Approx. 7 cm (H) × 5.6 cm (W) × 0.8 cm (D) |
900 yen (tax included) |
| [Set of 2] Trading Stickers M-Fes 2026 in Winter Wonderland Ver. | 49 varieties total (A: 12 varieties / B: 13 varieties / C: 11 varieties / D: 13 varieties) Approx. 5 cm (H) × 4 cm (W) |
700 yen (tax included) |
| Tote Bag: Christmas Gift Ver. | Bag Dimensions: Approx. 36 cm (H) × 37 cm (W) × 11 cm (D) | 2,200 yen (tax included) |
*Due to the nature of trading items, duplicate designs may occur.
*Purchase limits may apply depending on circumstances.
*You can check stock availability and restock status on the store’s X.
Birthday Bromide Giveaway Campaign
For every 2,000 yen (tax included) you spend during the campaign period, you’ll receive one birthday bromide featuring one of the six idols celebrating their birthdays this season!
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.| Characters | Distribution Period |
|---|---|
| Shu Amamine | December 1, 2026 (Tue) – While supplies last |
| Maki Uzuki | December 12, 2026 (Sat) – While supplies last |
| Takeru Okawa | Monday, December 21, 2026 – While supplies last |
| Seiji Shingen | Thursday, December 24, 2026 – While supplies last |
| Shun Fuyumi | Monday, January 4, 2027 – While supplies last |
| Michio Hara | Monday, January 4, 2027 – While supplies last |
*This offer applies to purchases of collaboration menu items and collaboration merchandise.
*Combining receipts is valid only on the same day and limited to once per day.
*Distribution status will be announced on the store’s X account.
How to Participate in The Idolmaster SideM × DECOTTO “M-Fes 2026 in Winter Wonderland”
During the first week, December 1–6, reservations will be accepted via an online lottery system.
| December 1, 2026 (Tue) – December 6, 2026 (Sun) | Lottery-based reservation system (Online Registration) |
|---|---|
| Other Dates | Open to the Public *Numbered tickets may be distributed during peak times. |
| Closed | December 31, 2026 (Thu) – January 3, 2027 (Sun) |
The Idolmaster SideM × DECOTTO “M-Fes 2026 in Winter Wonderland” kicks off on December 1!
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.| Official Website | The Idolmaster SideM × DECOTTO “M-Fes 2026 in Winter Wonderland” |
|---|---|
| Event Dates | December 1, 2026 (Tue) – January 12, 2027 (Tue) *Closed from December 31, 2026 (Thu) to January 3, 2027 (Sun) |
| Venue | DECOTTO by animate cafe 1F Ikebukuro PACKS, 3-2-1 Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013 |
| Hours | 11:00 a.m. – 8:00 p.m. |
| How to Visit | December 1 (Tue) – December 6 (Sun): Reservation by lottery (online registration) Other dates: Walk-ins welcome |
| Collaboration Menu | mofutto decotto (3 varieties total)・Christmas Soup・SELECT TEA BAG・TAG-COFFEE STAN (D) |
| Menu Order Bonus | Coasters (49 varieties total) One per menu item ordered |
| Campaign | Free Birthday Bromide (1 per 2,000 yen (tax included) spent) |
| Phone Number | 03-5950-7227 |
-
『アイドルマスター SideM』Teddy's Collection II ワイヤー3連アクリルチャーム/09 姫野かのん
Anime Store で詳細を見る -
『アイドルマスター SideM』Teddy's Collection II ワイヤー3連アクリルチャーム/08 橘志狼
Anime Store で詳細を見る -
『アイドルマスター SideM』Teddy's Collection II ワイヤー3連アクリルチャーム/07 岡村直央
Anime Store で詳細を見る -
『アイドルマスター SideM』Teddy's Collection II ワイヤー3連アクリルチャーム/06 渡辺みのり
Anime Store で詳細を見る
The Idolmaster SideM × DECOTTO “M-Fes 2026 in Winter Wonderland” FAQ
When is the “M-Fes 2026 in Winter Wonderland” × DECOTTO event taking place?
It runs from Tuesday, December 1, 2026, through Tuesday, January 12, 2027. The event will be closed from Thursday, December 31, 2026, through Sunday, January 3, (Sun).
Is a reservation required?
From Tuesday, December 1, 2026, to Sunday, December 6, 2026, reservations are made via a lottery system (online registration). On other dates, the event is open to the public on a first-come, first-served basis; however, numbered tickets may be distributed during peak times.
Are there any perks for ordering from the menu?
For every menu item ordered, you’ll receive one coaster. You can choose from four groups (A–D; 49 designs total), but you cannot select a specific design.
How do I get a birthday bromide?
You’ll receive one card for every 2,000 yen (tax included) spent on eligible collaboration menu items or merchandise. Cards featuring the six characters—Hide Amamine, Makio Uzuki, Takeru Okawa, Seiji Shingen, Shun Fuyumi, and Michio Hara—will be distributed starting on their respective release dates and will be available while supplies last.
Please check the official website.
*Please note that the information in this article may be out of date. We apologize for the inconvenience, but please check the official website for the latest information.
THE IDOLM@STER™& ©Bandai Namco Entertainment Inc.
